Service brakes, air: Supply: Low pressure warning: Switch11/01/198888V171000
USE OF THE AIR HORN CAN CAUSE THE AIR PRESSURE TO DROP BELOW 85 PSI.
Consequence
IF AIR PRESSURE DROPS BELOW 85 PSI WHILE THE VEHICLE ISBEING DRIVEN THE REAR BRAKE SPRING CHAMBERS WILL START TO APPLY CAUSING THEREAR BRAKE DRUMS TO OVERHEAT.
Remedy
INSTALL PRESSURE PROTECTION VALVES IN ALL AIR HORN CIRCUITS.
SYSTEM: AIR PRESSURE/BRAKES.VEHICLE INFORMATION: AMBULANCE UNITS WITH ROCKWELL U170 AND S170 AXLES.
Your record
What is the status for your vehicle?
Check your exact VIN before marking whether this recall applies.